EP 1520093 A1 20050406 - METHOD FOR CONTROLLING A FUEL METERING SYSTEM OF AN INTERNAL COMBUSTION ENGINE
Title (en)
METHOD FOR CONTROLLING A FUEL METERING SYSTEM OF AN INTERNAL COMBUSTION ENGINE
Title (de)
VERFAHREN ZUR STEUERUNG EINES KRAFTSTOFFZUMESSSYSTEMS EINER BRENNKRAFTMASCHINE
Title (fr)
PROCEDE POUR COMMANDER UN SYSTEME DOSEUR DE CARBURANT SUR UN MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- DE 0301738 W 20030528
- DE 10229019 A 20020628
Abstract (en)
[origin: WO2004003366A1] The invention relates to a method for controlling a fuel metering system of an internal combustion engine during which an activating duration of at least one electrically actuating injector (18) stipulates the quantity of fuel to be injected. In certain operating states, the minimum activating duration is determined, during which fuel was only just injected. Starting from an initial value, the activating duration is increased or reduced, and the activating duration, during which a signal undergoes a change, is stored as the minimum activating duration. The inventive method is characterized in that the difference between the activating duration, during which the signal undergoes a change, and the stored minimum activating duration is determined, and from this, correction values for the quantity characteristic diagram of the injector (18) are established and stored by using at least one transfer function (U1, U2, U3), which characterizes the correlation between the minimum activating duration and the activation durations at several test points (VE1, VE2, LL, EM, VL) of the injector (18) and/or the correlation between the activation durations at different test points of the injector (18).
IPC 1-7
IPC 8 full level
F02D 41/24 (2006.01); F02D 41/40 (2006.01); F02D 35/02 (2006.01); F02D 41/14 (2006.01); F02D 41/38 (2006.01); F02M 63/02 (2006.01)
CPC (source: EP US)
F02D 41/247 (2013.01 - EP US); F02D 41/40 (2013.01 - EP US); F02D 35/021 (2013.01 - EP US); F02D 41/3809 (2013.01 - EP US); F02D 2200/0618 (2013.01 - EP US); F02M 63/0225 (2013.01 - EP US); Y02T 10/40 (2013.01 - EP US)
Citation (search report)
See references of WO 2004003366A1
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
WO 2004003366 A1 20040108; DE 10229019 A1 20040129; DE 50305429 D1 20061130; EP 1520093 A1 20050406; EP 1520093 B1 20061018; JP 2005531717 A 20051020; US 2005161026 A1 20050728; US 7093586 B2 20060822
DOCDB simple family (application)
DE 0301738 W 20030528; DE 10229019 A 20020628; DE 50305429 T 20030528; EP 03737916 A 20030528; JP 2004516459 A 20030528; US 51089704 A 20041008